Help in update query

Hi, How I can get the desired output. I want to remove the numbers till first hyphen.

create table #tmp (code1 char(20))

insert into #tmp values ('0201_AAAA_GFTYY')

insert into #tmp values ('0204_BBBB_GFTYS')

insert into #tmp values ('0204_CCCC_GFTYT')

--Desired output

Code1

AAAA_GFTYY

BBBB_GFTYS

CCCC_GFTYT